-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * Copyright (C) 2002 Cluster File Systems, Inc.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
*
+ * Copyright (c) 2012, Whamcloud, Inc.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
#define DEBUG_SUBSYSTEM S_CLASS
#include <linux/version.h>
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
#include <asm/statfs.h>
-#endif
-#include <linux/obd.h>
-#include <linux/obd_class.h>
-#include <linux/lprocfs_status.h>
+#include <obd.h>
+#include <obd_class.h>
+#include <lprocfs_status.h>
#include "mds_internal.h"
-#ifndef LPROCFS
-
-struct lprocfs_vars lprocfs_mds_obd_vars[] = { {0} };
-struct lprocfs_vars lprocfs_mds_module_vars[] = { {0} };
-struct lprocfs_vars lprocfs_mdt_obd_vars[] = { {0} };
-struct lprocfs_vars lprocfs_mdt_module_vars[] = { {0} };
-
-#else
-
-static int lprocfs_mds_rd_mntdev(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+#ifdef LPROCFS
+static int lprocfs_mds_rd_evictostnids(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
{
struct obd_device* obd = (struct obd_device *)data;
LASSERT(obd != NULL);
- LASSERT(obd->u.mds.mds_vfsmnt->mnt_devname);
- *eof = 1;
- return snprintf(page, count, "%s\n",
- obd->u.mds.mds_vfsmnt->mnt_devname);
+ return snprintf(page, count, "%d\n", obd->u.mds.mds_evict_ost_nids);
}
-static int lprocfs_mds_wr_evict_client(struct file *file, const char *buffer,
+static int lprocfs_mds_wr_evictostnids(struct file *file, const char *buffer,
unsigned long count, void *data)
{
struct obd_device *obd = data;
- struct obd_export *doomed_exp = NULL;
- struct obd_uuid doomed;
- struct list_head *p;
- char tmpbuf[sizeof(doomed)];
-
- sscanf(buffer, "%40s", tmpbuf);
- obd_str2uuid(&doomed, tmpbuf);
-
- spin_lock(&obd->obd_dev_lock);
- list_for_each(p, &obd->obd_exports) {
- doomed_exp = list_entry(p, struct obd_export, exp_obd_chain);
- if (obd_uuid_equals(&doomed, &doomed_exp->exp_client_uuid)) {
- class_export_get(doomed_exp);
- break;
- }
- doomed_exp = NULL;
- }
- spin_unlock(&obd->obd_dev_lock);
-
- if (doomed_exp == NULL) {
- CERROR("can't disconnect %s: no export found\n",
- doomed.uuid);
- } else {
- CERROR("evicting %s at adminstrative request\n",
- doomed.uuid);
- ptlrpc_fail_export(doomed_exp);
- class_export_put(doomed_exp);
- }
- return count;
-}
+ int val, rc;
-static int lprocfs_mds_wr_config_update(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct obd_device *obd = data;
- ENTRY;
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc)
+ return rc;
- RETURN(mds_dt_update_config(obd, 0));
-}
+ obd->u.mds.mds_evict_ost_nids = !!val;
-static int lprocfs_rd_filesopen(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- struct obd_device *obd = data;
- LASSERT(obd != NULL);
- *eof = 1;
-
- return snprintf(page, count, "%d\n",
- atomic_read(&obd->u.mds.mds_open_count));
-}
-
-static int lprocfs_rd_last_fid(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- struct mds_obd *mds = &obd->u.mds;
- __u64 last_fid;
-
- spin_lock(&mds->mds_last_fid_lock);
- last_fid = mds->mds_last_fid;
- spin_unlock(&mds->mds_last_fid_lock);
-
- *eof = 1;
- return snprintf(page, count, LPD64"\n", last_fid);
-}
-
-static int lprocfs_rd_group(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- struct mds_obd *mds = &obd->u.mds;
-
- *eof = 1;
- return snprintf(page, count, "%lu\n",
- (unsigned long)mds->mds_num);
+ return count;
}
-struct lprocfs_vars lprocfs_mds_obd_vars[] = {
- { "uuid", lprocfs_rd_uuid, 0, 0 },
- { "blocksize", lprocfs_rd_blksize, 0, 0 },
- { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
- { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
- { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 },
- { "fstype", lprocfs_rd_fstype, 0, 0 },
- { "filestotal", lprocfs_rd_filestotal, 0, 0 },
- { "filesfree", lprocfs_rd_filesfree, 0, 0 },
- { "filesopen", lprocfs_rd_filesopen, 0, 0 },
- { "mntdev", lprocfs_mds_rd_mntdev, 0, 0 },
- { "last_fid", lprocfs_rd_last_fid, 0, 0 },
- { "group", lprocfs_rd_group, 0, 0 },
- { "recovery_status", lprocfs_obd_rd_recovery_status, 0, 0 },
- { "evict_client", 0, lprocfs_mds_wr_evict_client, 0 },
- { "config_update", 0, lprocfs_mds_wr_config_update, 0 },
- { "num_exports", lprocfs_rd_num_exports, 0, 0 },
- { 0 }
-};
+#define BUFLEN (UUID_MAX + 4)
-/*
- * LSD proc entry handlers
- */
-static int lprocfs_wr_lsd_downcall(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static int lprocfs_mds_wr_evict_client(struct file *file, const char *buffer,
+ unsigned long count, void *data)
{
- struct upcall_cache *cache = __mds_get_global_lsd_cache();
- struct lsd_downcall_args param;
- gid_t gids_local[NGROUPS_SMALL];
- gid_t *gids = NULL;
-
- if (count != sizeof(param)) {
- CERROR("invalid data size %lu\n", count);
- goto do_err_downcall;
- }
- if (copy_from_user(¶m, buffer, count)) {
- CERROR("broken downcall\n");
- goto do_err_downcall;
+ struct ptlrpc_request_set *set;
+ struct obd_device *obd = data;
+ struct mds_obd *mds = &obd->u.mds;
+ char *kbuf;
+ char *tmpbuf;
+ int rc;
+
+ OBD_ALLOC(kbuf, BUFLEN);
+ if (kbuf == NULL)
+ return -ENOMEM;
+
+ /*
+ * OBD_ALLOC() will zero kbuf, but we only copy BUFLEN - 1
+ * bytes into kbuf, to ensure that the string is NUL-terminated.
+ * UUID_MAX should include a trailing NUL already.
+ */
+ if (cfs_copy_from_user(kbuf, buffer,
+ min_t(unsigned long, BUFLEN - 1, count))) {
+ count = -EFAULT;
+ goto out;
}
+ tmpbuf = cfs_firststr(kbuf, min_t(unsigned long, BUFLEN - 1, count));
- if (param.err) {
- CERROR("LSD downcall indicate error %d\n", param.err);
- goto do_downcall;
+ if (strncmp(tmpbuf, "nid:", 4) != 0) {
+ count = lprocfs_wr_evict_client(file, buffer, count, data);
+ goto out;
}
- if (param.ngroups > NGROUPS_MAX) {
- CERROR("%d groups too big\n", param.ngroups);
- goto do_err_downcall;
+ set = ptlrpc_prep_set();
+ if (set == NULL) {
+ count = -ENOMEM;
+ goto out;
}
- if (param.ngroups <= NGROUPS_SMALL)
- gids = gids_local;
- else {
- OBD_ALLOC(gids, param.ngroups * sizeof(gid_t));
- if (!gids) {
- CERROR("fail to alloc memory for %d gids\n",
- param.ngroups);
- goto do_err_downcall;
- }
- }
- if (copy_from_user(gids, param.groups,
- param.ngroups * sizeof(gid_t))) {
- CERROR("broken downcall\n");
- goto do_err_downcall;
- }
+ if (obd->u.mds.mds_evict_ost_nids) {
+ rc = obd_set_info_async(NULL, mds->mds_lov_exp,
+ sizeof(KEY_EVICT_BY_NID),
+ KEY_EVICT_BY_NID, strlen(tmpbuf + 4) + 1,
+ tmpbuf + 4, set);
+ if (rc)
+ CERROR("Failed to evict nid %s from OSTs: rc %d\n",
+ tmpbuf + 4, rc);
- param.groups = gids;
+ ptlrpc_check_set(NULL, set);
+ }
-do_downcall:
- upcall_cache_downcall(cache, (__u64) param.uid, ¶m);
+ /* See the comments in function lprocfs_wr_evict_client()
+ * in ptlrpc/lproc_ptlrpc.c for details. - jay */
+ class_incref(obd, __FUNCTION__, cfs_current());
+ LPROCFS_EXIT();
- if (gids && gids != gids_local)
- OBD_FREE(gids, param.ngroups * sizeof(gid_t));
- return count;
+ obd_export_evict_by_nid(obd, tmpbuf + 4);
-do_err_downcall:
- param.err = -EINVAL;
- goto do_downcall;
-}
-static int lprocfs_rd_lsd_expire(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct upcall_cache *cache= __mds_get_global_lsd_cache();
+ rc = ptlrpc_set_wait(set);
+ if (rc)
+ CERROR("Failed to evict nid %s from OSTs: rc %d\n", tmpbuf + 4,
+ rc);
- *eof = 1;
- return snprintf(page, count, "%lu\n", cache->uc_entry_expire);
-}
-static int lprocfs_wr_lsd_expire(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct upcall_cache *cache= __mds_get_global_lsd_cache();
- char buf[32];
+ LPROCFS_ENTRY();
+ class_decref(obd, __FUNCTION__, cfs_current());
- if (copy_from_user(buf, buffer, min(count, 32UL)))
- return count;
- buf[31] = 0;
- sscanf(buf, "%lu", &cache->uc_entry_expire);
+ ptlrpc_set_destroy(set);
+out:
+ OBD_FREE(kbuf, BUFLEN);
return count;
}
-static int lprocfs_rd_lsd_ac_expire(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- struct upcall_cache *cache= __mds_get_global_lsd_cache();
+#undef BUFLEN
- *eof = 1;
- return snprintf(page, count, "%lu\n", cache->uc_acquire_expire);
-}
-static int lprocfs_wr_lsd_ac_expire(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static int lprocfs_wr_atime_diff(struct file *file, const char *buffer,
+ unsigned long count, void *data)
{
- struct upcall_cache *cache= __mds_get_global_lsd_cache();
- char buf[32];
+ struct obd_device *obd = data;
+ struct mds_obd *mds = &obd->u.mds;
+ char kernbuf[20], *end;
+ unsigned long diff = 0;
- if (copy_from_user(buf, buffer, min(count, 32UL)))
- return count;
- buf[31] = 0;
- sscanf(buf, "%lu", &cache->uc_acquire_expire);
- return count;
-}
+ if (count > (sizeof(kernbuf) - 1))
+ return -EINVAL;
-static int lprocfs_rd_lsd_upcall(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct upcall_cache *cache= __mds_get_global_lsd_cache();
+ if (cfs_copy_from_user(kernbuf, buffer, count))
+ return -EFAULT;
- *eof = 1;
- return snprintf(page, count, "%s\n", cache->uc_upcall);
-}
-static int lprocfs_wr_lsd_upcall(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct upcall_cache *cache= __mds_get_global_lsd_cache();
+ kernbuf[count] = '\0';
- if (count < UC_CACHE_UPCALL_MAXPATH) {
- sscanf(buffer, "%1024s", cache->uc_upcall);
- cache->uc_upcall[UC_CACHE_UPCALL_MAXPATH - 1] = 0;
- }
+ diff = simple_strtoul(kernbuf, &end, 0);
+ if (kernbuf == end)
+ return -EINVAL;
+
+ mds->mds_atime_diff = diff;
return count;
}
-extern void lgss_svc_cache_flush(__u32 uid);
-static int lprocfs_wr_lsd_flush(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static int lprocfs_rd_atime_diff(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
{
- char buf[32];
- __u32 uid;
-
- if (copy_from_user(buf, buffer, min(count, 32UL)))
- return count;
- buf[31] = 0;
- sscanf(buf, "%d", &uid);
+ struct obd_device *obd = data;
+ struct mds_obd *mds = &obd->u.mds;
- mds_flush_lsd(uid);
-#ifdef ENABLE_GSS
- lgss_svc_cache_flush(uid);
-#endif
- return count;
+ *eof = 1;
+ return snprintf(page, count, "%lu\n", mds->mds_atime_diff);
}
-struct lprocfs_vars lprocfs_mds_module_vars[] = {
- { "num_refs", lprocfs_rd_numrefs, 0, 0 },
- /* LSD stuff */
- { "lsd_expire_interval", lprocfs_rd_lsd_expire,
- lprocfs_wr_lsd_expire, 0},
- { "lsd_acquire_expire", lprocfs_rd_lsd_ac_expire,
- lprocfs_wr_lsd_ac_expire, 0},
- { "lsd_upcall", lprocfs_rd_lsd_upcall,
- lprocfs_wr_lsd_upcall, 0},
- { "lsd_flush", 0, lprocfs_wr_lsd_flush, 0},
- { "lsd_downcall", 0, lprocfs_wr_lsd_downcall, 0},
+struct lprocfs_vars lprocfs_mds_obd_vars[] = {
+ { "uuid", lprocfs_rd_uuid, 0, 0 },
+ { "blocksize", lprocfs_rd_blksize, 0, 0 },
+ { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
+ { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
+ { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 },
+ { "filestotal", lprocfs_rd_filestotal, 0, 0 },
+ { "filesfree", lprocfs_rd_filesfree, 0, 0 },
+ { "fstype", lprocfs_rd_fstype, 0, 0 },
+ { "mntdev", lprocfs_obd_rd_mntdev, 0, 0 },
+ { "recovery_status", lprocfs_obd_rd_recovery_status, 0, 0 },
+ { "hash_stats", lprocfs_obd_rd_hash, 0, 0 },
+ { "evict_client", 0, lprocfs_mds_wr_evict_client, 0 },
+ { "evict_ost_nids", lprocfs_mds_rd_evictostnids,
+ lprocfs_mds_wr_evictostnids, 0 },
+ { "num_exports", lprocfs_rd_num_exports, 0, 0 },
+ { "atime_diff", lprocfs_rd_atime_diff, lprocfs_wr_atime_diff, 0 },
{ 0 }
};
-struct lprocfs_vars lprocfs_mdt_obd_vars[] = {
- { "uuid", lprocfs_rd_uuid, 0, 0 },
+struct lprocfs_vars lprocfs_mds_module_vars[] = {
+ { "num_refs", lprocfs_rd_numrefs, 0, 0 },
{ 0 }
};
-struct lprocfs_vars lprocfs_mdt_module_vars[] = {
- { "num_refs", lprocfs_rd_numrefs, 0, 0 },
+struct lprocfs_vars lprocfs_mdt_obd_vars[] = {
+ { "uuid", lprocfs_rd_uuid, 0, 0 },
{ 0 }
};
-#endif /* LPROCFS */
-struct lprocfs_static_vars lprocfs_array_vars[] = { {lprocfs_mds_module_vars,
- lprocfs_mds_obd_vars},
- {lprocfs_mdt_module_vars,
- lprocfs_mdt_obd_vars}};
+void lprocfs_mds_init_vars(struct lprocfs_static_vars *lvars)
+{
+ lvars->module_vars = lprocfs_mds_module_vars;
+ lvars->obd_vars = lprocfs_mds_obd_vars;
+}
-LPROCFS_INIT_MULTI_VARS(lprocfs_array_vars,
- (sizeof(lprocfs_array_vars) /
- sizeof(struct lprocfs_static_vars)))
+#endif